Operating Instructions
Page 38
... PRESSURE MAY REQUIRE ADJUSTMENT FOR HIGHER PRESSURE 5 FT. This is observed. FLAME ROLL-OUT SAFETY SWITCH Atmospheric heaters are equipped with a time clock, connect the timer to the fireman's switch connection in the heater's wiring. This is located on high limit. For AFT heaters the fireman's switch connection is a "single-use...
... PRESSURE MAY REQUIRE ADJUSTMENT FOR HIGHER PRESSURE 5 FT. This is observed. FLAME ROLL-OUT SAFETY SWITCH Atmospheric heaters are equipped with a time clock, connect the timer to the fireman's switch connection in the heater's wiring. This is located on high limit. For AFT heaters the fireman's switch connection is a "single-use...